School of Physics Lecture Demonstration Manual

Fc-4 Funnel and ball

Published: Monday 13 March 2006 - Updated: Tuesday 29 March 2011

Aim

To Demonstrate airflow.

Apparatus

Diagrams

Click on pictures to enlarge.

Funnel and Ball

Funnel n Ball Diagram

Videos

Funnel and Ball

Description

This is a variation of the parallel plate paradox. The most satisfactory method is to push the ball into the narrower region of the funnel where it is held in a position of stable equilibrium.

Safety notes

Electrical safety 

Sharps Safety 

Maintenance 

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